Research progress on utilization of phase change materials in photovoltaic/thermal systems: A critical review
Research progress on utilization of phase change materials in photovoltaic/thermal systems: A critical review
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DOI：
10.1016/j.rser.2021.111313
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发表时间：
2021-10
影响因子：
15.9
通讯作者：
Qinghua Yu;Xi Chen;Hongxing Yang
中科院分区：
文献类型：
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作者：
Qinghua Yu;Xi Chen;Hongxing Yang
光伏/热电（PV/T）技术同时产生电和热，引起了广泛的关注。近年来，将相变材料（PCM）集成到PV/T系统中作为辅助冷却介质或/和蓄热介质以改善系统性能已变得普遍。本文对相变材料在光伏发电系统中的应用研究进展进行了全面的综述。收集和分析了各种PV/T系统采用的性能评价指标和应用的PCM。阐述了块体PCM在独立光伏组件、建筑一体化光伏组件和与其他能量转换技术集成的光伏组件中的结构和作用，重点介绍了微胶囊PCM（MPCM）浆料在光伏组件中的应用。讨论了PCM/MPCM的热物理性质和质量、工质的操作参数以及环境条件对PV/T-PCM组件传热性能的影响，同时探讨了PV/T-PCM组件的强化传热途径。研究表明，相变材料的集成可以有效地提高系统的性能，相变温度和操作参数根据环境条件进行精心定制。最后，从材料制造与改性、系统集成、模型开发以及性能分析等方面提出了今后的研究方向。该综述可为高效PV/T-PCM系统的设计和相关技术的进一步发展提供重要参考。
A photovoltaic/thermal (PV/T) technology, producing electricity and heat simultaneously, has attracted extensive attention. Integration of phase change materials (PCMs) into PV/T systems as auxiliary cooling media or/and heat storage media to improve the system performances has been prevalent in recent years. This paper aims to critically and comprehensively review the research progress concerning utilization of PCMs in PV/T systems. The adopted performance evaluation indexes and applied PCMs in various PV/T systems are gathered and analysed. The configurations and effects of bulk PCMs in standalone PV/T modules, building-integrated PV/T systems and PV/T systems integrated with other energy conversion technologies are elaborated with special attention paid to the microencapsulated PCM (MPCM) slurry applied in PV/T modules. The effects of thermophysical properties and mass of PCM/MPCM, operation parameters of working fluids, and environmental conditions are also discussed, whilst heat transfer enhancement approaches for PV/T-PCM modules are explored. It has been identified that the integration of PCMs can effectively elevate the system performances when the phase change temperature and operation parameters are carefully tailored according to environmental conditions. Finally, research prospects and opportunities are proposed in terms of material fabrication and modification, system integration, model development as well as performance analysis. The review can provide crucial references for high-efficiency PV/T-PCM system design and further development of relevant technologies.